REDU format ruling
Fire Princess

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Each time you gain Life Points, inflict 500 damage to your opponent.
Rulings
- If you have 1 Fire Princess and 2 Solemn Wishes on the field, Fire Princess’s effect deals 1000 damage to your opponent when you draw. If you have 1 Fire Princess and 2 Marie the Fallen One in your GY, Fire Princess’s effect deals 1000 damage to your opponent during your Standby Phase.
- If you have 2 Fire Princesses and 1 Solemn Wishes on the field, your opponent takes 1000 damage when you draw a card (and takes 2000 damage if you had 2 Solemn Wishes on the field instead of 1).
- If Mysterious Puppeteer is on the field when you Summon Fire Princess, Fire Princess’s effect will deal 500 damage to your opponent because of Mysterious Puppeteer’s effect.
- If you have Soul Absorption and Fire Princess face-up on the field when your opponent removes 3 monsters from his GY to Summon Dark Necrofear you will gain 1500 Life Points and Fire Princess’s effect will deal 500 Damage to your opponent.
- If you have a face-up Fire Princess and a Set Poison of the Old Man when your opponent activates Dark Hole you may chain Poison of the Old Man to increase your Life Points and the effect of Fire Princess will deal 500 damage to your opponent even though she is then destroyed by Dark Hole, because the effect of Fire Princess is a Continuous Effect.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.